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南くんの恋人〜my little lover
高中三年级的崛切千代和邻居家的男孩马南瞬一是从小就在一起的青梅竹马，但是两人已经很久没说过话了。某天，千代见到阿南和其他女孩在一起的样子，心中有着隐隐的嫉妒和羡慕，她由此确认了自己对阿南的情感。当晚，千代和家人发生争吵，谁知之后的意外，让她变成了只有15cm大小。万般无奈之下，她只能拜托最先发现自己的阿南，瞒过家人把自己藏在马南家。完全没有预料的情况下，千代与阿南展开了离奇的同居生活。她最终能否变回原来的样子？她和阿南的感情又将何去何从？
Once childhood sweethearts, high school seniors Chiyomi and Shunichi have drifted apart. One day, she realizes she still has feelings for him.
Wishing she were little again, Chiyomi is transformed into a miniature version of herself. When Shunichi finds her, she begs him to keep her hidden.
Shunichi takes Chiyomi shopping. They sneak into a local shrine where a legendary sacred mallet may be the key to solving her "tiny" problem.
Shunichi's mother and Chiyomi talk him into rejoining the kendo team for an important match. Meanwhile, a suspicious man snoops around his household.
Chiyomi sneaks out to get some doll dresses from her house. When she returns to Shunichi's home, she finds a mysterious couple who might be burglars.
Chiyomi secretly attends school but is seen by Riku. Later, Sayori stays over at Shunichi's house and sneaks into his room that night for a kiss.
Chiyomi is discovered by Shunichi's grandmother, who thinks she's a legendary princess. Later, she tries to fix a marital problem between her parents.
Tomiko is hospitalized after she suddenly faints. Shunichi is relieved to hear she's OK but soon has cause for worry when Chiyomi goes missing.
After questioning Shunichi, Riku finds out the truth about Chiyomi. Shunichi and Chiyomi leave on a trip to a hot springs to turn her back to normal.
Shunichi and Chiyomi eagerly await the legendary sunrise at Cape Akebono. Later, on the way home, Shunichi is hit by a car and hospitalized.
